Math Teasers
Math 6th - Study Guide #11

Teacher's Email:
Your Name:
Subject:
Lesson:
Your Score: out of 26

 

Directions:

Choose the best answer for each question listed below.



Vocabulary Choices:

1. Solve: 40% of 249?


88.6

66.6

77.6

99.6

2. What is the expanded form of 505,200?

(5*106) + (5*104) + (2*103)

(5*104) + (5*103) + (2*102)

(5*105) + (5*103) + (2*102)

(5*104) + (5*102) + (2*101)

3. Which of these correctly represents 82,500,000 expressed in scientific notation?

8.25 x 108

8.25 x 107

8.25 x 106

8.25 x 105

4. 512 x 3 = ?

3,516

5,136

5,123

1,536

5. Which of these expressions is the expanded form of this number? 870,539

(8*103) + (7*102) + (0*101) + (5*10) + (3*100) + 9

(8*105) + (7*104) + (0*103) + (5*102) + (3*101) + (9*100)

(8*106) + (7*105) + (0*104) + (5*103) + (3*102) + (9*101)

(8*104) + (7*103) + (0*102) + (5*101) + (3*100) + 9

6. Solve: 0.41 x 5.5

22.55

225.5

2.255

32.255

7. Which calculator answer is most reasonable for the problem
45 of 100?

50

80

70

60

8. Jessie has 18 dolls. Barbara has 1.5 times as many dolls as Jessie has. How many dolls does Barbara have?

27

12

36

9

9. What is the best result for 19 x 39 = ?

741

641

441

541

10. Which sign shows the comparison between 13 _____ .33

=

x

>

<

11. Which sign shows the correct comparison?
34 _____ 56

<

=

>

x

12. Find the sum of 47 + (-47) = ?

-47

47

0

74

13. Solve: 18 + 16 = ?

12

724

17

748

14. 43 = ?

43

12

32

64

15. You are trying to find the least common multiple of the denominators in 12 and 38.

Look across the row of multiples for 2 and 8 on a multiplication table. What is the smallest, or least common multiple (LCM), of the two numbers?

8

2

24

16

16. Where is point B located on the number line?

2.8

112

1.75

223

17. Which of the numbers given is a composite number?

2

4

3

5

18. What is the greatest common factor (GCF) of 12 and 18?

18

12

2

6

19. Which model shows 100 divided by 20?

a.

b.

c.

d.

20. Which of the following numbers is a prime number?

4

9

2

12

21. What are 2 equivalent fractions for 12 ?

48 , 69

34 , 48

24 , 48

69 , 510

22. Which decimal is equivalent to 78 ?

.78

.875

7.8

8.75

23. How many 1.5 yard bows can be made from 13.5 yards of ribbon?

9

8

10

7

24. Which of these is a prime number?

53

32

95

27

25. Which symbol correctly completes these numbers?
4.21 x 102 _____ 421

+

>

=

<

26. Kristy had $87.00 in her account. She deposited $55.00 more into her account. She spent $40.00 on a dress and $63.00 on shoes. How much does she have in her account after these transactions?

$39.00

$24.00

$79.00

$69.00